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67 results for “Coccoids”
FIGURE 2 in Aliterella shaanxiensis (Aliterellaceae), a new coccoid cyanobacterial species from China
FIGURE 2. Transmission electron micrographs of Aliterella shaanxiensis. A–B. Section of colonies surround by mucilaginous envelopes. C. Cell section showing unstratified firm mucilaginous envelope and polyphosphate body. D. Section of cell in binary fission. E–F. Section of cylindrical cell, showing cell wall, sheath, DNA fibrils, polyphosphate bodies, parietal thylakoids and phycobilisome. Scale bars: A–B, 1 μm; C–F, 0.5 μm. Abbreviations: CW, cell wall; D, DNA fibrils; PB, polyphosphate body; Py, phycobilisome; S, sheath; TH, thylakoids.
FIGURE 1 in Aliterella shaanxiensis (Aliterellaceae), a new coccoid cyanobacterial species from China
FIGURE 1. Light micrographs of Aliterella shaanxiensis. A, B. Compact and irregular thallus composed of numerous colonies or solitary cells with colourless and firm mucilaginous envelopes. C, D. Irregular or rounded colonies. E. Blue-green cells easily removed from colonies with pressure. F, G. Cylindrical cells with rounded ends. Scale bars: A–E, 10 μm; F–G, 5 μm.
FIGURE 5. Predicted secondary structure for Box-B in Aliterella shaanxiensis (Aliterellaceae), a new coccoid cyanobacterial species from China
FIGURE 5. Predicted secondary structure for Box-B helix of 16S–23S rRNA intergenic spacer of three Aliterella strains. (a) A. antarctica CENA408T; (b) A. atlantica CENA595T; (c) A. shaanxiensis FACHB–2293.
FIGURE 3 in A case of taxonomic inflation in coccoid algae: Ellipsoidion parvum and Neocystis vischeri are conspecific with Neocystis (=Nephrodiella) brevis (Chlorophyta, Trebouxiophyceae)
FIGURE 3: Representative images of Neocystis mucosa (A–C) and Neocystis brevis (D–I) strains. A: CAUP D 801. B: KR 1989/14. C: SAG 40.88. D: CAUP D 802. E: ASIB BS 319. F: CCALA 393. G: CALA 341. H, I: SAG 40.86. Scale bar = 10 µm.
FIGURE 1 in A case of taxonomic inflation in coccoid algae: Ellipsoidion parvum and Neocystis vischeri are conspecific with Neocystis (=Nephrodiella) brevis (Chlorophyta, Trebouxiophyceae)
FIGURE 1: Comparison of the ITS2 sequences and predicted secondary structures of Neocystis brevis and Neocystis mucosa. Base numbering is indicated every 10 bases, and the four helices are numbered with Roman numerals. The structure shown corresponds to N. brevis; positions conserved in N. mucosa are portrayed in green, bases substituted in N. mucosa are shown by the structure and connected to the respective position by a short line, insertions and deletions are indicated with plus and minus symbols, respectively. The base pair marked in a grey box is a compensatory base change (CBC). The highly conserved U–U mismatch in the helix II and UGGU motif in the helix III (Schultz et al. 2005) are marked by arrows.
FIGURE 4 in A case of taxonomic inflation in coccoid algae: Ellipsoidion parvum and Neocystis vischeri are conspecific with Neocystis (=Nephrodiella) brevis (Chlorophyta, Trebouxiophyceae)
FIGURE 4: Unit-less centroid size values of strains of Neocystis spp. Boxplots with a full outline represent strains of N. mucosa. Boxplots with a dashed outline represent strains of N. brevis.
FIGURE 2 in A case of taxonomic inflation in coccoid algae: Ellipsoidion parvum and Neocystis vischeri are conspecific with Neocystis (=Nephrodiella) brevis (Chlorophyta, Trebouxiophyceae)
FIGURE 2: Morphometric characteristics of Neocystis strains. a) Visualisation of the multivariate regression model illustrating the relation of the shape and size of cells in the entire investigated dataset. b) The PCA ordination plot based on geometric morphometric data illustrating mean positions of individual strains and their standard deviations on PC1 (spanning 65.9% of the variation) and PC2 (23.2%). The theoretical cell shapes of marginal morphospace positions were reconstructed from the landmark coordinates of the original data.
FIGURES 14A–14B in How diverse are coccoid cyanobacteria? A case study of terrestrial habitats from the Atlantic Rainforest (São Paulo, Brazil)
FIGURES 14A–14B. Chamaesiphon stratosus. Cell arrangement and initial stage after exospore germination (arrow). FIGURES 14C–14D. Hyella cf. caespitosa var. arbuscula. General thallus aspect and detail of baeocytes in mothers' sheath (arrow).
FIGURES 15A–15D in How diverse are coccoid cyanobacteria? A case study of terrestrial habitats from the Atlantic Rainforest (São Paulo, Brazil)
FIGURES 15A–15D. Pleurocapsa sp. General colony habit and details of baeocytes (arrows). FIGURES 15E–15G. Chroococcidiopsis sp. General colony habit and details of baeocytes (arrows).
FIGURES 12A–12C. Entophysalis granulosa FIGURES 12D–12E in How diverse are coccoid cyanobacteria? A case study of terrestrial habitats from the Atlantic Rainforest (São Paulo, Brazil)
FIGURES 12A–12C. Entophysalis granulosa FIGURES 12D–12E. Entophysalis cf. samoensis FIGURES 12F–12G. Entophysalis sp. 1
FIGURES 11A–11C in How diverse are coccoid cyanobacteria? A case study of terrestrial habitats from the Atlantic Rainforest (São Paulo, Brazil)
FIGURES 11A–11C. Chlorogloea sp. 3 FIGURES 11D–11E. Cyanoarbor aff. himalayensis FIGURES 11F–11H. Entophysalis arboriformis
FIGURES 8A–8C in How diverse are coccoid cyanobacteria? A case study of terrestrial habitats from the Atlantic Rainforest (São Paulo, Brazil)
FIGURES 8A–8C. Nephrococcus shilinensis. General colony habit and detail of reniform cells (arrows). FIGURES 8D–8E. Pseudocapsa dubia. General colony habit with colonies showing brown sheaths (arrow). FIGURES 8F–8G. Pseudocapsa sp. General colony habit and cells in fan disposition, which is typical from Pseudocapsa (arrow). FIGURE 8H. Chondrocystis dermochroa.
FIGURES 6L–7B. Gloeocapsopsis dvorakii. 6L. Colony collected from a rock. 7A. Colony collected from a rope. 7B. Colony collected from a in How diverse are coccoid cyanobacteria? A case study of terrestrial habitats from the Atlantic Rainforest (São Paulo, Brazil)
FIGURES 6L–7B. Gloeocapsopsis dvorakii. 6L. Colony collected from a rock. 7A. Colony collected from a rope. 7B. Colony collected from a roof.
FIGURES 6A–6D. Cyanostylon gelatinosus. 6C. Cells detail. 6D. Mucilage stalk detail. FIGURE 6E in How diverse are coccoid cyanobacteria? A case study of terrestrial habitats from the Atlantic Rainforest (São Paulo, Brazil)
FIGURES 6A–6D. Cyanostylon gelatinosus. 6C. Cells detail. 6D. Mucilage stalk detail. FIGURE 6E. Cyanostylon cf. gelatinosus. General colony habit with detail of mucilage stalks (arrows). FIGURES 6F–6G. Cyanostylon sp. 6G. Mucilage stalk detail (arrow). FIGURES 6H–6I. Endospora rubra. General colony habit with cell packets showing individual envelopes (arrows).
FIGURES 2A in How diverse are coccoid cyanobacteria? A case study of terrestrial habitats from the Atlantic Rainforest (São Paulo, Brazil)
FIGURES 2A. Gloeothece fuscolutea. General colony habit, with yellowish sheaths and a colony showing cells with an individual envelope (arrow).
FIGURES 1A–1B in How diverse are coccoid cyanobacteria? A case study of terrestrial habitats from the Atlantic Rainforest (São Paulo, Brazil)
FIGURES 1A–1B. Aphanothece saxicola. General colony habit with cells in an individual envelope (arrow).
FIGURES 5A–5B. Chroococcus tenax. 5A. General colony habit highlighting the lamellated sheaths. 5B in How diverse are coccoid cyanobacteria? A case study of terrestrial habitats from the Atlantic Rainforest (São Paulo, Brazil)
FIGURES 5A–5B. Chroococcus tenax. 5A. General colony habit highlighting the lamellated sheaths. 5B. Desiccated cell showing concentrically lamellate sheaths and blue color.
FIGURES 4A in How diverse are coccoid cyanobacteria? A case study of terrestrial habitats from the Atlantic Rainforest (São Paulo, Brazil)
FIGURES 4A. Coelosphaeriopsis sp. General aspect of a colony and detail of cells in individual envelopes (arrow).
FIGURE 1 in A new coccoid family (Hemiptera: Coccomorpha) for an unusual species of scale insect on Podocarpus macrophyllus (Podocarpaceae) from southern China
FIGURE 1. Podocarpus macrophyllus infested by Qinococcus podocarpus Wu, sp. n.
◂Fig. 5 Cells of phylogenetically related strains (light microscopy). a Thecate cell in dorsal view. b Thecate cell in ventral view, note the sulcus extending onto the epitheca (arrow). c Putatively necrotic, thecate cell. d Thecate cell with one bulge on the epitheca (arrow), note that this was the only such cell among thousands of inspected cells. e, f Coccoid cells, apparently without thecae. g Two thecate cells enclosed in the parental theca. h Two connected, immotile cells enclosed in the parental thecae. j Lid of epitheca in dorsal-apical view (mirrored), composed of plates 2′‒4′, all intercalary plates and plates 2′′‒6′′. l‒m Same opened theca in ventral view (l) and dorsal view (m), note the sulcus extending onto the epitheca (arrow), the dorsal opening and all apical and all intercalary plates and plates 3′′‒5′′ remaining with the hypotheca. n Chloroplasts (as inferred from autofluorescence), note the space occupied by the nucleus. Plate labelling follows the Kofoidean notation, n′: apical plate; n′′: precingular plate; n′′′: postcingular plate; na: anterior intercalary plate. Scale= 10 µm in Bumps on the back: An unusual morphology in phylogenetically distinct Peridinium aff. cinctum (= Peridinium tuberosum; Peridiniales, Dinophyceae)
◂Fig. 5 Cells of phylogenetically related strains (light microscopy). a Thecate cell in dorsal view. b Thecate cell in ventral view, note the sulcus extending onto the epitheca (arrow). c Putatively necrotic, thecate cell. d Thecate cell with one bulge on the epitheca (arrow), note that this was the only such cell among thousands of inspected cells. e, f Coccoid cells, apparently without thecae. g Two thecate cells enclosed in the parental theca. h Two connected, immotile cells enclosed in the parental thecae. j Lid of epitheca in dorsal-apical view (mirrored), composed of plates 2′‒4′, all intercalary plates and plates 2′′‒6′′. l‒m Same opened theca in ventral view (l) and dorsal view (m), note the sulcus extending onto the epitheca (arrow), the dorsal opening and all apical and all intercalary plates and plates 3′′‒5′′ remaining with the hypotheca. n Chloroplasts (as inferred from autofluorescence), note the space occupied by the nucleus. Plate labelling follows the Kofoidean notation, n′: apical plate; n′′: precingular plate; n′′′: postcingular plate; na: anterior intercalary plate. Scale= 10 µm
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
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